Michael Faraday was an infamous scientist known for his discoveries and experiments on electricity and magnetism. Without him, we are still using candles today instead of LED and fluorescent lights, as well as computers, laptop, fridge,etc. Answer is A. 
        
                    
             
        
        
        
It uses size, depth, shading, and texture
        
             
        
        
        
13.9
Explanation: add the amount he doesn’t in gift A (10.7) and the amount he spent on part B (5.4) and you get 16.1. The. Subtract 16.1 from 30 and you get 13.9
        
                    
             
        
        
        
Polyphonic music uses two or more independent melodies and monophonic music uses one melody.
 
        
                    
             
        
        
        
Answer:
To learn the lines of the bass clef, the awkward mnemonic “Good Boys Do Fine Always” is typically used, with the first letter of each word indicating the notes on that line (bottom to top: G, B, D, F, A). For the spaces, the mnemonic “All Cows Eat Grass” is used.
Explanation: